diff --git a/dep/libchdr/include/libchdr/chdconfig.h b/dep/libchdr/include/libchdr/chdconfig.h
index 752038b48..2a1ea4bbd 100644
--- a/dep/libchdr/include/libchdr/chdconfig.h
+++ b/dep/libchdr/include/libchdr/chdconfig.h
@@ -3,8 +3,8 @@
 
 /* Configure CHDR features here */
 #define WANT_RAW_DATA_SECTOR    1
-#define WANT_SUBCODE            1
-#define NEED_CACHE_HUNK         1
-#define VERIFY_BLOCK_CRC        1
+#define WANT_SUBCODE            0
+#define NEED_CACHE_HUNK         0
+#define VERIFY_BLOCK_CRC        0
 
 #endif